Report

FZJ-2016-05736

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Kriech- und Ermüdungsrisswachstum der Werkstoffe X10NiCrAlTi3220 und NiCr22Co12Mo im Hochtemperaturbereich

Rödig, M.FZJ* ; Huthmann, H. ; Hartnagel, W. ; Offermann, M.FZJ*

1990
Forschungszentrum Jülich GmbH Zentralbibliothek, Verlag Jülich

Please use a persistent id in citations: http://hdl.handle.net/2128/12649

Report No.: Juel-2412

Abstract: As part of several HTGR-development programs, experiments on creep crack growth and fatigue crack growth have been performed at the companies ABB, Interatom, KFA and PSI. The materials under investigation were XlONiCrAlTi32 20 (Alloy 800) and NiCr22CoI2Mo (Inconel 617). Several production lots and semifinished materials as well as welded materials have been tested. Testing techniquesmore or less differ at the different labs. This concerns heating, crack length measurement, COD-measurement and specimen geometry. In order to eliminate the influence of individual testing techniques, material of some production lots was tested at different labs. Creep crack growth: Alloy 800 was tested between 550°C and 900°C, Inconel 617 between 800°C and 1000°C. The evaluation was done on the base of the fracture mechanics parameters K$_{I}$ and C*. Fatigue crack growth: The materials were tested between RT and 1050°C. The influence of temperature, R-ratio, frequency and hold time was investigated. Beside the experiments in air, some standard specimens were also tested in vacuum and in HTGR-helium. A few experiments have been performed with components (tubes). In order to get informations on the influence of long time heat treatment on the crack propagation, creep and fatigue tests also have been performed with serviced material.

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Contributing Institute(s):

1. Publikationen vor 2000 (PRE-2000)

Research Program(s):

1. 899 - ohne Topic (POF3-899) (POF3-899)

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Database coverage:

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